6649695 has 48 divisors (see below), whose sum is σ = 12903072. Its totient is φ = 3265920.

The previous prime is 6649693. The next prime is 6649723. The reversal of 6649695 is 5969466.

It is not a de Polignac number, because 6649695 - 2¹ = 6649693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6649695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15585 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (268814).

Almost surely, 2^6649695 is an apocalyptic number.

6649695 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6649695 is a deficient number, since it is larger than the sum of its proper divisors (6253377).

6649695 is a wasteful number, since it uses less digits than its factorization.

6649695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 442 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 6649695 is about 2578.7002540039. The cubic root of 6649695 is about 188.0473605594.

The spelling of 6649695 in words is "six million, six hundred forty-nine thousand, six hundred ninety-five".